pub fn definition(tool: &Tool, metric: FlightMetric) -> Option<Definition>Expand description
What metric measures in a reference from tool, or None where that has not been measured
for the tool’s version.
OpenRocket 24.12, measured by flights.py on the 56 complete flights of the public designs:
| metric | definition |
|---|---|
| apogee, largest speed, largest Mach | the peak of its altitude, total velocity or Mach column |
| largest acceleration | the peak of total acceleration before the first deployment |
| time to apogee | the time of the highest stored step, not the apogee event (13 flights differ) |
| flight time | the time of ground hit, its last step |
| rod clearance, ground-hit speed | total velocity at the event, which is on a step |
| deployment speed | total velocity interpolated in time between the steps either side |
| which deployment | the last (no flight has more than two) |
| stability margin | its stability column at rod clearance |
| optimum delay | none: apogee less burnout misses on 15 flights, and so does the same flight’s with nothing deployed |
RocketPy 1.13.0: the apogee, largest speed and rail-exit speed of hpr’s whole-flight cases,
taken at the center of dry mass (ADR-021). Any other version: None.